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/openbmc/linux/drivers/thermal/
H A Dcpuidle_cooling.c1 // SPDX-License-Identifier: GPL-2.0
21 * struct cpuidle_cooling_device - data for the idle cooling device
31 * cpuidle_cooling_runtime - Running time computation
35 * The running duration is computed from the idle injection duration
37 * means the running duration is zero. If we have a 50% ratio
39 * running duration.
43 * running = idle x ((100 / ratio) - 1)
47 * running = (idle x 100) / ratio - idle
50 * with 10ms of idle injection and 10ms of running duration.
60 return ((idle_duration_us * 100) / state) - idle_duration_us; in cpuidle_cooling_runtime()
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/openbmc/openbmc/poky/meta/recipes-kernel/kexec/kexec-tools/
H A Dkdump12 KEXEC_ARGS="-p"
15 MAKEDUMPFILE_ARGS="-E -d 1"
17 LOGGER="logger -p info -t kdump"
19 if [ -f /etc/sysconfig/kdump.conf ]; then
29 if [ ! -e ${MAKEDUMPFILE} -o ! -x ${MAKEDUMPFILE} ] ;then
35 if [ ! -e ${KEXEC} -o ! -x ${KEXEC} ] ;then
41 if [ -z "${KDUMP_KIMAGE}" -o ! -f "${KDUMP_KIMAGE}" ]; then
55 KDUMP_VMCORE_PATH="/var/crash/`date +"%Y-%m-%d"`"
58 mkdir -p ${KDUMP_VMCORE_PATH}
61 ${MAKEDUMPFILE} ${MAKEDUMPFILE_ARGS} /proc/vmcore ${KDUMP_VMCORE_PATH}/vmcore-"`date +"%H:%M:%S"`"
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/openbmc/linux/arch/x86/xen/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
29 Support running as a Xen PV guest.
32 bool "Limit Xen pv-domain memory to 512GB"
39 pv-domains with more than 512 GB of RAM. This option controls the
41 It is always possible to change the default via specifying the
65 Support running as a Xen PVHVM guest.
86 Support for running as a Xen PVH guest.
95 Support running as a Xen Dom0 guest.
98 bool "Always use safe MSR accesses in PV guests"
/openbmc/linux/include/uapi/linux/
H A Dmembarrier.h31 * enum membarrier_cmd - membarrier system call command
34 * @MEMBARRIER_CMD_GLOBAL: Execute a memory barrier on all running threads.
36 * is ensured that all running threads have passed
38 * user-space addresses match program order between
40 * (non-running threads are de facto in such a
42 * running on the system. This command returns 0.
44 * Execute a memory barrier on all running threads
48 * is ensured that all running threads have passed
50 * user-space addresses match program order between
52 * (non-running threads are de facto in such a
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/openbmc/qemu/.gitlab-ci.d/
H A Dcrossbuild-template.yml7 - ccache
9 when: always
12 - source scripts/ci/gitlab-ci-section
13 - section_start setup "Pre-script setup"
14 - JOBS=$(expr $(nproc) + 1)
15 - cat /packages.txt
16 - section_end setup
18 - export CCACHE_BASEDIR="$(pwd)"
19 - export CCACHE_DIR="$CCACHE_BASEDIR/ccache"
20 - export CCACHE_MAXSIZE="500M"
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H A Dbuildtest-template.yml7 - ccache
9 when: always
11 - source scripts/ci/gitlab-ci-section
12 - section_start setup "Pre-script setup"
13 - JOBS=$(expr $(nproc) + 1)
14 - cat /packages.txt
15 - section_end setup
17 - export CCACHE_BASEDIR="$(pwd)"
18 - export CCACHE_DIR="$CCACHE_BASEDIR/ccache"
19 - export CCACHE_MAXSIZE="500M"
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/openbmc/linux/Documentation/admin-guide/hw-vuln/
H A Dcore-scheduling.rst1 .. SPDX-License-Identifier: GPL-2.0
9 workloads may benefit from running on the same core as they don't need the same
15 ----------------
16 A cross-HT attack involves the attacker and victim running on different Hyper
18 full mitigation of cross-HT attacks is to disable Hyper Threading (HT). Core
19 scheduling is a scheduler feature that can mitigate some (not all) cross-HT
21 user-designated trusted group can share a core. This increase in core sharing
23 will always improve, though that is seen to be the case with a number of real
26 not always: as synchronizing scheduling decisions across 2 or more CPUs in a
27 core involves additional overhead - especially when the system is lightly
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/openbmc/linux/Documentation/scheduler/
H A Dsched-nice-design.rst6 nice-levels implementation in the new Linux scheduler.
8 Nice levels were always pretty weak under Linux and people continuously
34 -*----------------------------------*-----> [nice level]
35 -20 | +19
49 people were running number crunching apps at nice +19.)
52 right minimal granularity - and this translates to 5% CPU utilization.
53 But the fundamental HZ-sensitive property for nice+19 still remained,
56 too _strong_ :-)
58 To sum it up: we always wanted to make nice levels more consistent, but
79 depend on the nice level of the parent shell - if it was at nice -10 the
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/openbmc/linux/rust/kernel/
H A Dtask.rs1 // SPDX-License-Identifier: GPL-2.0
10 /// Returns the currently running task.
14 // SAFETY: Deref + addr-of below create a temporary `TaskRef` that cannot outlive the
26 /// Instances of this type are always ref-counted, that is, a call to `get_task_struct` ensures
56 /// fn new() -> Self {
90 pub unsafe fn current() -> impl Deref<Target = Task> { in current()
99 fn deref(&self) -> &Self::Target { in current()
108 // SAFETY: If the current thread is still running, the current task is valid. Given in current()
117 pub fn group_leader(&self) -> &Task { in group_leader()
118 // SAFETY: By the type invariant, we know that `self.0` is a valid task. Valid tasks always in group_leader()
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/openbmc/linux/Documentation/virt/kvm/x86/
H A Drunning-nested-guests.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Running nested guests with KVM
8 can be KVM-based or a different hypervisor). The straightforward
12 .----------------. .----------------.
17 |----------------'--'----------------|
22 .------------------------------------------------------.
25 |------------------------------------------------------|
27 '------------------------------------------------------'
31 - L0 – level-0; the bare metal host, running KVM
33 - L1 – level-1 guest; a VM running on L0; also called the "guest
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/openbmc/openpower-occ-control/service_files/
H A Dorg.open_power.OCC.Control.service3 Wants=mapper-wait@-xyz-openbmc_project-inventory.service
4 After=mapper-wait@-xyz-openbmc_project-inventory.service
5 Wants=obmc-host-reset-running@0.target
6 After=obmc-host-reset-running@0.target
12 ExecStart=/usr/bin/openpower-occ-control
13 Restart=always
18 WantedBy=multi-user.target
/openbmc/qemu/include/block/
H A Dblockjob.h2 * Declarations for long-running block device operations
29 #include "qapi/qapi-types-block-core.h"
40 * Long-running operation on a BlockDriverState.
50 * Status that is published by the query-block-jobs QMP API.
57 * Always modified and read under the BQL (GLOBAL_STATE_CODE).
63 * RateLimit API is thread-safe.
68 * Block other operations when block job is running.
69 * Always modified and read under the BQL (GLOBAL_STATE_CODE).
92 * Always modified and read under the BQL (GLOBAL_STATE_CODE).
100 * See include/block/block-global-state.h for more information about
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/openbmc/linux/Documentation/leds/
H A Dleds-lp55xx.rst8 -----------
14 Device attributes for user-space interface
15 Program memory for running LED patterns
50 - Maximum number of channels
51 - Reset command, chip enable command
52 - Chip specific initialization
53 - Brightness control register access
54 - Setting LED output current
55 - Program memory address access for running patterns
56 - Additional device specific attributes
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/openbmc/openbmc/meta-openembedded/meta-oe/recipes-support/libusbgx/libusbgx/
H A Dusbgx.initd4 # Required-Start: $local_fs
5 # Should-Start:
6 # Required-Stop: $local_fs
7 # Should-Stop:
8 # Default-Start: 2 3 4 5
9 # Default-Stop: 0 1 6
10 # Short-Description: Example initscript
20 DAEMON=/usr/bin/gadget-start
27 [ -x "$DAEMON" ] || exit 0
30 [ -r /etc/default/$NAME ] && . /etc/default/$NAME
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/openbmc/u-boot/drivers/misc/
H A Dstatus_led.c1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2000-2003
12 * target which usually boots over the network; while running in
13 * U-Boot, a status LED is blinking. As soon as a valid BOOTP reply
15 * kernel, once it is running, will start blinking the LED again,
19 /* ------------------------------------------------------------------------- */
81 __led_init (ld->mask, ld->state); in status_led_init()
95 if (ld->state != CONFIG_LED_STATUS_BLINKING) in status_led_tick()
98 if (++ld->cnt >= ld->period) { in status_led_tick()
99 __led_toggle (ld->mask); in status_led_tick()
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/openbmc/qemu/include/sysemu/
H A Drunstate.h4 #include "qapi/qapi-types-run-state.h"
14 typedef void VMChangeStateHandler(void *opaque, bool running, RunState state);
34 * @running: whether the VM is running or not.
37 void vm_state_notify(bool running, RunState state);
46 * think we are running.
58 * @step_pending: whether any of the CPUs is about to be single-stepped by gdb
77 /* Always keep QEMU_WAKEUP_REASON_NONE = 0 */
/openbmc/phosphor-dbus-interfaces/yaml/xyz/openbmc_project/State/
H A DHost.interface.yaml5 - name: RequestedHostTransition
12 - xyz.openbmc_project.State.Host.Error.BMCNotReady
13 - xyz.openbmc_project.Common.Error.NotAllowed
14 - xyz.openbmc_project.Common.Error.Unavailable
16 - name: AllowedHostTransitions
19 - const
26 - name: CurrentHostState
29 A read-only property describing the current state of the host
34 - name: RestartCause
41 - name: Transition
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H A DBMC.interface.yaml3 transition. When Ready all services required are running
8 - name: RequestedBMCTransition
14 - xyz.openbmc_project.Common.Error.Unavailable
16 - name: CurrentBMCState
19 The current state of the BMC and is a read-only property.
21 - name: LastRebootTime
27 - name: LastRebootCause
34 - name: Transition
38 - name: "Reboot"
41 - name: "HardReboot"
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/openbmc/linux/scripts/basic/
H A DMakefile1 # SPDX-License-Identifier: GPL-2.0-only
5 hostprogs-always-y += fixdep
7 # randstruct: the seed is needed before building the gcc-plugin or
8 # before running a Clang kernel build.
9 gen-randstruct-seed := $(srctree)/scripts/gen-randstruct-seed.sh
12 $(CONFIG_SHELL) $(gen-randstruct-seed) \
14 $(obj)/randstruct.seed: $(gen-randstruct-seed) FORCE
16 always-$(CONFIG_RANDSTRUCT) += randstruct.seed
/openbmc/openbmc/meta-openembedded/meta-oe/recipes-navigation/gpsd/gpsd/
H A Dgpsd.init4 # Required-Start: $remote_fs $syslog $network
5 # Should-Start: bluetooth dbus udev
6 # Required-Stop: $remote_fs $syslog $network
7 # Should-Stop:
8 # Default-Start: 2 3 4 5
9 # Default-Stop: 0 1 6
10 # X-Start-Before: ntp
11 # Short-Description: GPS (Global Positioning System) daemon start/stop script
31 [ -x "$DAEMON" ] || exit 0
34 [ -r /etc/default/$NAME ] && . /etc/default/$NAME
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/openbmc/openbmc/meta-openembedded/meta-networking/recipes-filter/ulogd2/ulogd2/
H A Dulogd.init4 # Required-Start: $local_fs
5 # Should-Start:
6 # Required-Stop: $local_fs
7 # Should-Stop:
8 # Default-Start: 2 3 4 5
9 # Default-Stop: 0 1 6
10 # Short-Description: Userspace logging daemon for netfilter/iptables
16 # restart stop and restart the service if the service is already running,
18 # try-restart restart the service if the service is already running
21 # force-reload cause the configuration to be reloaded if the service supports
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/openbmc/openbmc/poky/documentation/test-manual/
H A Dreproducible-builds.rst1 .. SPDX-License-Identifier: CC-BY-SA-2.0-UK
15 build is running on.
22 <https://reproducible-builds.org/>`__, which shares information about why
27 This has always been a key focus but, :ref:`since release 3.1 ("dunfell")
28 <migration-guides/migration-3.1:reproducible builds now enabled by default>`,
37 :ref:`overview-manual/concepts:Hash Equivalence` for
38 :ref:`overview-manual/concepts:Shared State` object reuse works much more
54 - Adding mappings to the compiler options to ensure debug filepaths are mapped
56 :term:`DEBUG_PREFIX_MAP` variable which sets the ``-fmacro-prefix-map`` and
57 ``-fdebug-prefix-map`` compiler options correctly to map to target paths.
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/openbmc/linux/arch/powerpc/kvm/
H A Dbook3s_hv_hmi.c1 // SPDX-License-Identifier: GPL-2.0-or-later
23 * been loaded yet and hence no guests are running, or running in wait_for_subcore_guest_exit()
26 * If no KVM is in use, no need to co-ordinate among threads in wait_for_subcore_guest_exit()
27 * as all of them will always be in host and no one is going in wait_for_subcore_guest_exit()
34 if (!local_paca->sibling_subcore_state) in wait_for_subcore_guest_exit()
38 while (local_paca->sibling_subcore_state->in_guest[i]) in wait_for_subcore_guest_exit()
44 if (!local_paca->sibling_subcore_state) in wait_for_tb_resync()
48 &local_paca->sibling_subcore_state->flags)) in wait_for_tb_resync()
/openbmc/linux/Documentation/networking/
H A Dxfrm_sync.rst1 .. SPDX-License-Identifier: GPL-2.0
21 This way a backup stays as closely up-to-date as an active member.
25 For this reason, we also add a nagle-like algorithm to restrict
28 These thresholds are set system-wide via sysctls or can be updated
32 - the lifetime byte counter
36 - the replay sequence for both inbound and outbound
39 ----------------------
41 nlmsghdr:aevent_id:optional-TLVs.
76 message (kernel<->user) as well the cause (config, query or event).
87 -----------------------------------------
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/openbmc/linux/sound/usb/
H A Dcard.h1 /* SPDX-License-Identifier: GPL-2.0 */
9 #define SYNC_URBS 4 /* always four urbs for sync */
16 unsigned int fmt_type; /* USB audio format type (1-3) */
18 unsigned int frame_size; /* samples per frame for non-audio */
68 int opened; /* open refcount; protect with chip->mutex */
69 atomic_t running; /* running status */ member
77 atomic_t state; /* running state */
122 unsigned int fill_max:1; /* fill max packet size always */
131 bool lowlatency_playback; /* low-latency playback mode */
132 bool need_setup; /* (re-)need for hw_params? */
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